f/overrides/event-backup/fdevx-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

535 B

1DateDividends
22015-12-230.188000
32016-09-020.003000
42017-09-010.007000
52017-12-220.286000
62019-02-150.061000
72021-10-010.025000
82021-12-171.596000
92015-09-040.029000
102025-10-010.020000
112024-12-200.403000
122019-12-201.074000
132020-12-180.593000
142022-10-030.395000
152023-12-200.686000
162024-10-010.159000
172014-09-050.359000
182020-10-020.098000
192022-12-200.435000
202025-12-220.765000
212018-12-210.326000
222016-12-220.255000
232019-03-150.064000
242019-04-150.062000
252019-10-040.004000
262022-12-150.109000
272014-12-233.696000